如何按元组的长度对元组列表进行排序

Question

I have a list, which has a bunch of tuples of different sizes inside. Each Tuple contains a certain number of objects. I want to sort the list so the tuples with 1 object are all before tuples with 2 objects etc. I know tuples have a built in length but I dont know how to use it with the sort method in python. Thank you!

Answer 1

Use this:

print(sorted(list_of_tuples,key=len))

Or:

list_of_tuples.sort(key=len)
print(list_of_tuples)

Both reproduce the expected result.